Single stateless Go process that consumes CT logs via embedded (patched) CertSpotter internals, classifies cloud/database/storage DNS identifiers in-process with a zero-allocation classifier, enriches via round-robin DNS resolvers with CNAME following, and batch-writes useful findings to PostgreSQL. - third_party/certspotter: 2-hunk IdentifierSink patch, no stdout/JSON/files - internal/classify: AWS/Azure/GCP/Firebase/Cloudflare R2/DigitalOcean/Supabase/OCI - internal/dns: sharded bounded TTL cache, multi-resolver load balancing + failover - internal/pipeline: bounded queues, dedup, direct-priority load shedding - internal/store: pgx batch writer, Postgres CT checkpoints (no cert contents) - internal/probe: optional non-destructive reachability checks (off by default) - Docker: distroless non-root, read-only rootfs, no app volume, resource limits - tests enforce 0 allocs/op on the classifier and sink hot path
23 lines
624 B
Docker
23 lines
624 B
Docker
# syntax=docker/dockerfile:1
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FROM golang:1.25-alpine AS build
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WORKDIR /src
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# Cache module downloads (including the local certspotter fork's deps).
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COPY go.mod go.sum ./
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COPY third_party/certspotter/go.mod third_party/certspotter/go.sum ./third_party/certspotter/
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RUN go mod download
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COPY . .
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# Static binary: no cgo, no shell, no writable filesystem required.
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RUN CGO_ENABLED=0 GOOS=linux go build \
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-trimpath -ldflags="-s -w" \
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-o /out/ctcloud ./cmd/ctcloud
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FROM gcr.io/distroless/static-debian12:nonroot
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COPY --from=build /out/ctcloud /ctcloud
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USER nonroot:nonroot
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EXPOSE 9090
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ENTRYPOINT ["/ctcloud"]
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